Device



2 SHEETS-SHEET l.

Patented Jan, 10, 1922.

C. E. DATH.

HOLSTER LOCKING DEVICE.

APPLICATION man sEPT.18,L92o.

C. E. DAH.

BOLSTER LOCKING DEVICE.

APPLlcArloN FILED sEPT.1a,192o.

1,402,849 Patented Jan. 10, 1922.

2 SHEES-SHEET 2.

o rrr Application. September l5, Illl t.

` ing had to the accompanying` drawings,

formino` a part of this specification.

This invention relates to improvements in bolster locking devices.

ln the operation oi railway cars, it has heretofore been ttound desirable to provide means for locking the body and truck bolsters of cars together in such a way as 'to prevent vertical separation thereoil and thus prevent or at least minimize danger `from telescoping' ol the cars in the event ot col lisions. lleretotore, the use ot such loclring devices, lrom a practical standpoint, has been limited to certain types of truclrs wherein the truclr bolster' is assembled with the truck trame in such a way that the truclr bolster is prevent-ed trom vertical. separa tion with respect to the truck traine. llo adequate provision has been made tor elle@- tively interlocking the body and truclr bolsters ot those cars employing; a truclr in which the body bolster is not so interloclred with the truck trame that the truclr bolster cannot be pulled out vertically from the truck frame. Trucks ot the character last described occur in trucks ot the type known as tour-wheel trucks employed generally in passenger equipment.

The object ot my invention is to provide a body and truck bolster locking arrangement especially designed for touravheel trucks ot that type wherein the truck bolster is ordinarily inserted and removed 'from the truck traine ireely in a vertical direction and in which there is no inherent construction in the truck itself to prevent the truclr bolster being; lifted or pulled out vertically from the truck lrame in the event of collisions.

In the drawings forming a part oi this specilication, Figure l is a part elevational view part vertical sectional view ol a well known type of tour-wheel truck showing; more particularly the manner in which the truck bolster is assembled with the other parts ot the truck. Figure 9; is a top plan view of a little more than halt ot the truck Specification of .letters l?atent.

raient-eri aan, to, les

Serial lille. fllllll.

bolster and associated transoms of the construction illustrated in Figure l. Figure 8 a vertice` sectional view corresponding iirbstantially to the line 3 3 of Figure l bowing my improvements applied to the '.,f'pe or truclr illustrated in Figures l and 2. i.he planeet the section in Figure 3 extends parallel te the center line of the car. And

rl ligure el is a detail horizontal sectional view ce spending' substantially to the line d-l ol` )ure 3.

J t ldelerring first to the construction illustrated in Figures l and 2, lll-l0 denote the side vtrames ol? the truclr with whiclivare cast .integrally or rigidly united therewith, spaced transoms ll-ll, leavingi an elonrated substantially rectangular opening l2 to accommodate the truck bolster 1,3. The truclr bolster ll, as shown in Figures l and EZ and which is customary in many types oir' tour-wheel truclrs employed in passenger equipment, is inserted vertically within the opening' l2 and is therefore ireeto move vertically with respect to the truck trame and without adetuiate provision to prevent said bolster Ytroni hemp; pulled or lifted out oi the truck 'trame in the event or' collision. l the -general practice to support the ends el; bolster on heavy elliptic springs lilwll which are -noiufitecL on a spring plank l5. lt is not deemed necessary to describe other tentures ot the truck.

ln carrying; out my invention, as shown in Fieures 3 and fl, the body bolster lo is pro ded on its under side with the usual center bearing1 plate l? and the truck bolster l@ is formed with a preferably integral cori'espending1 center bearing` plate 19. Els is customary, both holsters and the center bearing plates are provided with vertically alined openings 20-20 to accommodate a lrinr; pin. ln carrying out the present invention, l employ a detachable locking king pin which consists ot' two side members film-911i and a central spreader 22. Each et the side members 2l is substantially semispreader 22 is put in place7 the shoulders 24-24 will overhang' adjacent portions of the truck and body bolsters as indicated in Figure 3.

lt is evident trom the foregoing that the locking center pin above described will prevent vertical separation ot the body and truck holsters While at the same time permitting the usual turning or swiveling Inoveinent thereof. To make the invention effertivej l employ a heavy Wide plate 2.5 preterably detachably secured to the under side et the truck bolster 1S as by bolts 26-26- Said plate 25 has its ends upwardly offset and extended horizontally as indicated at 27-27 beneath the adjacent bottoni tlanges E28-#28 ot the two transoins 29-29- ln normal position ot the parts, the ends 27 of the plate are spaced troni the under sides ot the transoins as indicated at 30 a distance suiiicient to permit vertical vibration ot the truck holsters i8 with respect to the transonis and truclr trame Within usual limits. ln the event however that an abnormal condition occurs as in the case et a collision when a tendency vwould arise to pull the truck holst r out from between the transoins, it is evident that this action vvill be prevented by the pla-te 25 and the locking pin obviously prevents vertical separation between the tivo bolsters and hence I obtain a practical bolster locking device effective between the car body bolster and the truck.

l .have herein shown and described what non' .-onsider the preferred manner oi carying out the invention but it Will be evident that various changes and ineditications inay be made in the details et construction without departing trein the spirit ot' the invention. rThe essential characteristics ot the invention are the means tor interloclringv the body and truck bolsters and means tor prevent-ing abnormal vertical movement oit the truck bolster with respect to the transoms.

l claim:

l. ln car construction, the combination vwith a body Jolster and a truck having '-ansorns and a 'truck bolster vertically 1nisle between the transoms; ot' detachable nieans loated at the centers ot the body and truck bolsters, arranged to lock the st vertical separation While at the saine time permitting` relative turning i vcinents; and roopeating means, rigid the truck bolsteil and transoins respecy, adapted to prevent the truck bolster moved vertically relatively to the s more than a predetermined amount, the ineens on the transonis being above and normally slightly verticallyv spaced from the Lns on the truclr bolster, said cooperating; Vins being; distinct from said detachable means.

2, ln car construction7 the combination n'itii z body bolster and a truck havingr transoins and a truclr bolster vertically insertible Exc-tween the ti'ansoins; et detachable means located at the centers of the body and truck holsters, arranged to lock the saine against ve..\;ical separation while at the saine time permitting relative turning;` movements; and ,nber rigidly secured to the truck bol and having)l portions thereof extending ander portions or the transoms and normally itin y vertically spaced therefrom.

ln car construction,Y the con'ibination with a body bolster and a truck having transorns and a, truck bolster vertically insertible la' een the trauscins; of detachable means ited at the centers ot the body and truck arranged to loci; the saine against Y separation vvhile at the saine time ingr relative turning movements; and rigidly but detachably secured to the :r side of the truck bolster, said plate e' its ends extended under adjacent ions et the transonis.

witness that l claim the foregoingr I ai e hereunto subsi-ribed iny naine this 10th ot dept., i920.

CHARLES E. DATH.

a plate y vl l ilu' Witness Canam GAILING. 

